Q.1
14 Marks(b)
Write properties and applications of alloys.
(c)
What is hard water? How it is affecting industries? Write the remediation for the same.
Gujarat Technological UniversityWinter 2025 examination
GTU BE01000031 Chemistry Winter 2025 Question Paper & PDF
B.E. · Common Engineering · Semesters 1 and 2 · Subject code BE01000031GTU also lists this paper as BE01R00031
- Total
- 70 marks
- To pass
- 23 marks (33%)
- Duration
- 2.5 Hours 2:30 PM – 5:00 PM
- Questions
- 5 with internal choice
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7 of 25 questions on this paper were also asked in other years. Each is marked below with the years it appeared.See all 20 repeated BE01000031 questions, most asked first
Q.2
14 Marks(a)
Write difference between: Scale & Sludge & Priming & Foaming
(c)
How badly a metal can be affected by oxidation via moist air? Give definition types and two methods of prevention of corrosion.
OR
(c)
How will you solve the problem associated with efficiency of fuel? Explain your answer with respect to altering important properties of fuels.
Q.3
14 Marks(a)
Write notes on Heisenberg's uncertainty principle.
Also asked in Summer 2026 Q3b, Summer 2025 Q5a, Winter 2024 Q5b
(b)
How acidity and basicity is defined/varies in Hard and soft acid base concept.
Also asked in Summer 2026 Q4b, Winter 2024 Q3b OR
(c)
Write detailed notes on classification of alloys and heat treatment of steel.
OR
(a)
What is caustic emrittlement? Write chemistry behind it and remediation.
Also asked in Summer 2025 Q2a, Winter 2024 Q1c
(b)
GIve two examples of each sp³ and sp³d type of hybridization.
(c)
Describe energy storage devices with lithium batteries construction and working
Also asked in Summer 2026 Q4b OR, Summer 2025 Q5c OR, Winter 2024 Q4c
Q.4
14 Marks(a)
What are Eco friendly materials? How they provide sustainable solution to pollution, give answer in context to bio based materials.
(b)
Write short notes on: Red Shift, Retention factor, Hook's law, Shielding
(c)
Write short notes on: Bio fuel, Bio diesel, Bio briquettes, photolysis of water, Knocking, octane number, calorific value
OR
(a)
Write applications of chemistry in our daily life, covering the topics associated with this course.
(b)
"Structural elucidation is incomplete without spectroscopic techniques", defend the statement with facts and
(c)
What is Fermentation? Write its applications in synthesis of one very important chemical used in chemical industry (with detailed process, diagram and reaction).
Q.5
14 Marks(a)
Breaking form top to bottom or making from bottom to top? Write on approaches used to make nano particles.
Also asked in Summer 2026 Q5c, Summer 2025 Q2b, Winter 2024 Q5c
(b)
Write derailed note on GC.
(c)
Write the principle behind UV spectroscopy, draw its instrumentation diagram and elaborate application.
OR
(a)
Write a note on: metal nano particles, fullerols, carbon nano tubes
(b)
What is chromatography? Why it is important to do TLC in basic synthesis in chemistry laboratory?
(c)
Nikita synthesized o-nitro phenol in chemistry laboratory. Help her analyzing the same with the help of UV, IR, NMR spectroscopy with tentative peak assignments and evaluation of the structure.
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About this paper
Official Gujarat Technological University (GTU) examination paper for Chemistry (Winter 2025, B.E. · Common Engineering, Sem 1). Features complete 70-mark regular & remedial examination pattern, official marking distribution across all 5 questions, and direct 1-click official PDF download.
Transcribed for student exam preparation from Gujarat Technological University official examination archives. Questions, syllabus guidelines, and curriculum marking schemes remain the intellectual property of Gujarat Technological University.